Excess volume

Term · Chemistry · MLC-T-CHM-004165

The difference between the actual volume of a mixture and the sum of the volumes of its pure components before mixing, at the same temperature and pressure. A positive excess volume indicates expansion upon mixing, while a negative value indicates contraction. This quantity provides insight into the intermolecular interactions within a solution.

Table 1. Record
Identifier	MLC-T-CHM-004165
Field	Chemistry
Subject	Physical and Biophysical Chemistry
References	PAC, 1986, 58, 967. 'Reporting data on adsorption from solution at the solid/solution interface (Recommendations 1986)' on page 972 (https://doi.org/10.1351/pac198658070967)

Record as JSON

{
  "id": "MLC-T-CHM-004165",
  "term": "Excess volume",
  "field": "Chemistry",
  "definition": "The difference between the actual volume of a mixture and the sum of the volumes of its pure components before mixing, at the same temperature and pressure. A positive excess volume indicates expansion upon mixing, while a negative value indicates contraction. This quantity provides insight into the intermolecular interactions within a solution.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "PAC, 1986, 58, 967. 'Reporting data on adsorption from solution at the solid/solution interface (Recommendations 1986)' on page 972 (https://doi.org/10.1351/pac198658070967)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/excess-volume/"
}

Record 4,416 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.